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Telescope Planetary Color Filters
A set of planetary filters are "nice-to-have" telescope accessories to enhance your enjoyment of the planets. Filters shown bolded are the most useful and versatile:
| Wratten # |
Filter Color |
Object |
Comments |
| 1A |
skylight |
- |
Astrophotography |
| 11 |
yellow-green |
Moon |
reduces glare |
| 12, 15 |
dark yellow |
Moon |
reduces glare, increases contrast |
| 21, 23A |
orange, light-red |
Mars,
Saturn |
accentuates clouds |
| 25 |
dark red |
Venus
Mars |
accentuates clouds, surface detals |
| 38A |
blue-green |
Mars |
Clouds |
| 47 |
dark purple |
Venus |
reduces glare, clouds |
| 56, 58 |
green |
Mars,
Jupiter,
Saturn |
Great Red Spot, red bands, cloud belts |
| 80A, 82A |
blue |
Mars,
Jupiter |
accentuates clouds, belt details |
| 85 |
salmon |
Mars |
accentuates surface details |
| 96 |
neutral density |
Moon,
Venus |
Reduces glare |
| - |
polarizer |
Moon |
Increases contrast |
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